Pump-governor.



No. 775,391. PATENTED NOV. 22, 1904. R. CONRADER.

PUMP GOVERNOR.

AP1 LIOATION FILED 1.111,29, 1902.

PATENTED NOV. 22, 1904.

R. CONRADER.

PUMP GOVERNOR.

APPLICATION FILED JAN. 2e, 1902.

No MODEL.

3 SHEETS-SHEET 2.

No. 775,391. PATENTED NOV. 22, 1904. R. GONRADBR.

PUMP GVERNOR.

PPPPPPPPPPPPPPPPP 11.29, 1902.

N 0 M 0 D E L 3 S H E E T S S H E E T 3.

QW@ W /7 475W/ UNITED STATES Patented November 22, 1904.

PATENT GEEICE.

PUMP-GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 775,391, dated November22, 1904.

Application tiled January 29, 1902. Serial No. 91,784. (No model.)

To wl zul/bont it ntcty concern:

Be it known that I, RUDOLPH CONRADER, a citizen of the United States,residing at Erie, in the county of Erie and State of Pennsylvania, haveinvented certain new and useful Improvements in Pump-Governors; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to pump-governors; and it consists in certainimprovements in the construction thereof, as will be hereinafter fullydescribed, and pointed out in the claims.

The invention forms an improvement on the governor shown in my PatentNo. 664,468, of December 9,5, 1900. I do not wish to be limited,however, to a governor-regulater.

The invention is illustrated in the accompanying drawings, as follows:

Figure l shows a section on the line 1 1 in Figs. 2 and 3. Fig. 2 showsa plan view of the regulator. Fig. 3 shows a side elevation looking'from the right of Fig. 2.

The invention is illustrated as applied to a pump-governor, and soillustrated A marks the valve-chamber; B, the valve; the valvestem; C,the governor-frame, in which there is the drive-shaft bearing arm c, inwhich is journaled the drive-shaft D. The drive-pulley D is fixed on thedrive-shaft D. The bevel-gear Z is iixed on the inner end of the shaftD. The governor-carrier E is journaled in the head c of the arm C'.Fixed on the lower end of the carrier is the bevel-gear e, meshing thebevel-gear (l. Secured to the carrier in the usual manner are thegovernorweights F F. The yoke L is fixed on the shaft Journaled on thisyoke and extending upwardly therefrom is the upper part of the stem b3.-On the top of this stem is the cross-head bf. The link fconneets thiscrosshead with the weights F. The yoke b is provided with the slot If,in which is arranged the rounded end of the centripetal lever G. Thecentripetal lever G is journaled on the pin g of the arm c2 of thegovernor-frame.

On the inner end g of the lever G is arranged the pin H, which extendsupwardly from said lever through the nut I on the yoke I. The yoke I isprovided with the guide-pin I2, which is secured to the arm ff,extending from the yoke by means of a screw on said pin. It is locked inposition by the jam-nut i. The end of the pin is provided with the head[2. which forms a stop which prevents the complete closing of theregulatorvalve B. Arranged around the pin H are the springs J J. thespring .I being' of greater strengththan thespringJ. Ashoulder-sleeve jis arranged within the spring' J, and this by contacting the nut Ilimits the action of the spring J. IVhen the sleeve j is in contact withthe nut I', the spring J is thrown out of action and the governor issubjected to a centripetal force of the heavier spring J. rIhe strengthof the centripetal element may be adjusted by the nut I, which isscrewed into the yoke I.

The lower end of the yoke is provided with a stem f, which rests uponthe piston K of the regulator-motora The piston K operates in thecylinder L. The lower part of the piston is of smaller diameter than theupper and lits into the supplemental cylinder L2. The cylinder L issecured to an extension C of the frame C. That the parts may beconveniently assembled the cylinder is provided with a shoulder Thecylinder is passed through a perforation in the extension C and a cap Lscrewed onto the end of the cylinder against the extension, thussecuring the parts. Air or uid is admitted to the cylinder from thechambei M. The supplemental cylinder L2 has the flange Z" on its lowerend, which engages the bottom of the cylinder L. The cap L3 is screwedonto the bottom of the chamber L for securing the supplemental cylinderL2 in place. A minute opening f extends from the cylinder L into thesupplemental cylinder L2, and this arrangement operates as a dash-pot,preventing too rapid action of the piston K. In order that the parts maybe thoroughly lubricated and an oil seal provided for the piston K, Iprovide the piston with the perforation 1, into which there is a minuteopening le from the supplementalcylinder L2. The perforation fcommunicates through the lateral opening lug with the surface of thepis- The bottom part of the cylinder L ton K.

may be filled with oil, and this operated through the minute opening Z3gives greater dash-pot effect than would direct application of air, andin addition the oil is forced through the openings 7c', 7c, and k2 tothe surface of the piston. Arranged at the sides of the yoke I are thelugs I3, and arranged at the side of the cylinder are the lugs L4. Thesprings 14 are tensioned between the lugs I3 and L4. These springs arepreferably of just sufficient strength to a little more than overcomethe force of the spring J. j

Air is admitted to the cylinder L from the chamber M. A supply-opening'mleads from the cylinder N into the chamber M vand a minute vent-openingm leads from the chamber M to the atmosphere. Arranged in the opening mis the valve P with the needle end p. The valve is provided with a capp' at its end and is secured to a. plunger O by means of a flange-nut 0,arranged in a cavity I0 in rthe plunger O. The plunger O operates in thecylinder N. The receiver connection N leads into the cylinder N betweenthe end of the plunger and the supply-opening m. Extending outwardlyfrom the plunger `is a stem O', which engages the lever Q. The lever Qis pivoted on a pin n, and the pin n is secured to the arm ln, extendingfrom the cylinder N. A spring R is secured to the lug n2 on the cylinderand the end of the lever Q. The mechanism for securing the spring to thelever comprises the adjusting-bolt r and thumbscrews 7", by which thebolt may be locked in position. Extending from the lever Q is an arm-Q/,on which is adjustably mounted the Weight Q2. A screw g3 is provided forlocking the weight in any position. An arm g extends from the upper endof the lever Q. A set-screw q' is arranged in this arm in position tolimit the swinging of the lever Q and the outward movement of theplunger O. A jam-nut q2 is provided for locking the setscrew in anadjusted position.

The operation of the device is as follows: Air being admitted to thecylinder N exerts pressure on the plunger O. The weight Q2 and theinitial strength of the spring R are suiiicient to hold the valve Pseated until the rminimum desired pressure of the receiver is reached.When the pressure in the receiver vrises above this point, the plungerOis forced outwardly, lthus moving. the valve P from its seat, but theneedle-point remains in the supply-opening m'. The spring R isrelatively quite short, so that its strength or tension rapidlyincreases as the plunger moves. Thus Athe plunger O will occupy a givenposition with a given receiver-pressure, and a given capacity of openingby the needle-point p is effected. The air passing into the chamber -Mcreates pressure in said chamber. There is'av constant escape of air orfluid, however, from the chamber M through the vent m.

The pressure in the chamber, therefore, where the capacity of thesupply-opening m is less than the size of the vent, is not verymaterially increased; but where the supply-opening is made` considerablylarger through the action of the plunger and the needle-valve 7o thenthe pressure rises in the chamber M, and consequently in the cylinder L,in proportion to the difference in the capacitiesof the openings m andm. The springs 'lo increase in strength more rapidly than the spring Jdecreases, so that with a given pressure in the cylinder L the piston ,Kwill occupy a certain position in said cylinder, thus giving to the yokeI a certain position, and this varying the force of the centripetalelement changes 8o the speed of the governor, but operating upon theregulating-valve iniiuences it to regulate. This mechanism can bemadeexceedingly sensitive and is capable of very ne adjustments. Vherethe desired,receiver-pressure is, for example, one hundred pounds, andit is desired to keep this within one or two pounds of this pressure, itwill be observed that the-dierence in pressure, if directly appliedtothe piston K, would not so overcome the frictional resistances of theparts as to eect Aa ready response of the piston. By 'usingfa secondarymotor, as exemplified by the plunger O, with the supply and ventopenings and'varying the capacities of these the 'l pressure operatingupon the piston K can be made to vary with a variation of two or threeper cent. in the receiver almost any per cent. desired, so that apositive yet sensitive movement of the piston can be effected, andconsequently closer regulation than is believed to have been practicalwith devices of this class heretofore constructed.

The variation of pressure on the piston K relatively to the variation inthe receiver may be adjusted by the adjustments on the springs R, whichwill vary it the relative change in strength of said spring with a givenmovement. The moment at which the valve P is opened-that is, theadjustment which will hold the valve P to its seat until the desiredminimum receiverpressure is reached-is preferably made through theaction of the weight. rlhe weight, however, as shown, does notmaterially change the force applied to the plunger O as the plungermoves, this change being practically taken care of by the spring R. Theweight Q2 may be dispensed with and the entire regulating effected bythe spring R. I prefer, however, to utilize the Weight for the reasonabove described.

It will be noted that with the present structure a givenreceiver-pressure within the limits of pressure desired will maintainthe piston K at a practically xed point so long as the receiver-pressureremains constant. The consequent adjustment of the centripetal elementin this position of the piston K eifects such an action of the governoras to give to the pump or supply medium a fixed capacity, so

IOO

that if the amount of fluid drawn from the receiver remains constant thesupply of the receiver will remain constant and the governor' will g'iveto the pump a volume which will maintain the pump at a constant speed.In this respect this governor is distinguished from most governors ofthis class in that they maintain the pump at the maximum speed desiredminimum, and then reduce the pump immediately to the minimum speed untilthe pressure of the receiver is reduced to below the minimum desired,when the pump is again brought to its maximum speed; or, in other words,such devices do not reg'ulate the pump to a speed that will supply theamount exhausted and maintain it at that speed.

Vhat I claim as new is- 1. In a pump-g'overnor, the combination of acentripetal element and a centrifugal element arranged to act inopposition to said centripetal element; a motor actuated by a fluid forvarying' the relative strength of one of the elements; means forconnecting' said motor with a fluid-receiver, said motor being arrangedto act with a change of pressure in a receiver; and means forintensifying' the change of fluid-pressure on the motor over a chang'eof pressure in the receiver.

2. In a pump-governor, the combination of a centripetal elementand acentrifugal element arranged to act in opposition to said centripetalelement; a motor actuated by a fluid for varying' the relative strengthof one of the elements; means for connecting' said motor with a fluidreceiver, the fluid supply of which is to be regulated, said motor beingarr-anged to act with a change of pressure in a receiver; and means forintensifying the chang'e of fluid-pressure on the motor over a chang'eof pressure in the receiver.

3. In a pump-governor, the combination of a centri petal element and acentrifugal el ement arranged to act in opposition to said centripetalelement; a motor actuated by a fluid for varying' the relative strengthof one of the elements; means for connecting' said motor with afluid-receiver, said motor being' a1'- ranged to act with a change ofpressure in a receiver; means for intensifying' the chang'e ofduid-pressure on the motor over a change of pressure in the receiver;and means for controlling' the extent of said intensifying action.

4. In a pump-governor, the combination of a centripetal element and acentrifug'al element arranged to act in opposition to said centripetalelement; a motor actuated by a fluid for varying the relative strengthof one of the elements; means for connecting' said motor with afluid-receiver, the fluid-supply of which is to be regulated, said motorbeing' arranged to act with a change of pressure in a receiver; meansfor intensifying' the chang'e of fluid-pressure on the motel' over achange of pressure in the receiver; and means for controlling the extentof said intensifying action.

5. In a pum p-governor, the combination of a centripetal element and acentrifugal element arranged to act in opposition to said centripetalelement; a motor actuated by a fluid for varying the relative strengthof one of the until the pressure 1n the rece1ver reaches the elements;means for connecting' said motor with a fluid-receiver, the fluid-supplyof which is to be regulated, said motor being' arranged to act with achang'e of pressure in the receiver; means for intensifying' the changeof fluid-pressure on the motor over a change of pressure in thereceiver; and means for controlling' the extent of said intensifying'action and its proportion to the change of pressure in the receiver.

6. In a pump-governor, the combination of a centripetal element and acentrifugal element arranged to act in opposition to said centripetalelement; a motor actuated by the pump fluid for varying' the strength ofthe centripetal element; means for connecting said motor with afluid-receiver, the fluid-supply of which is to be regulated, said motorbeing' arranged to act with a chang'e of pressure in the receiver; andmeans for intensifying the change of fluid-pressure on the motor over achang'e of pressure in the receiver.

7. In a pump-governor, the combination of a centripetal element and acentrifugalelement arranged to act in opposition to said centripetalelement; a motor actuated by the pump fluid for varying' the strength ofone of the elements within the limits of power exerted by the otherelement; means for connecting' said motor with a fluid-receiver, thefluid-su pply of which is to be regulated, said motor being arranged toact with a chang'e of pressure in the receiver; and means forintensifying' the chang'e of fluid-pressure on the motor over a changeof pressure in the receiver.

8. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor for varying' the relative strength of one of theelements; a counter-pressure device arranged against said motor andincreasing' in force with a movement of the motor; means for connecting'said motor with a receiver, the fluid-supply of which is to beregulated; and means for intensifying a change of pressure on the motorover that of the chang'e of pressure in the receiver.

9. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor for varying' the relative strength of said elements;means for connecting said motor with a fluid-receiver, said motor havinga supply-opening' from said means of connection and a vent-opening'.

l0. ln a pum p-governor, the combination of a centrifugal element; acentripetal element IOO larranged to act in opposition to saidcentrifugal element; a motor for varying the relative strength of saidelements; means for connecting said motor with a fluid-receiver, thefluid-supply of which is to be regulated, said motor having asupply-opening from said means of connection and a vent-opening.

11. In apump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor arranged to vary the strength of the centripetalelement; means for connecting said motor with a fluid-receiver, saidmotor having a supply-opening from said means of connection and avent-opening.

12. In apump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor arranged to vary the relative strength of saidelements; means for connecting' said motor with a fluid-receiver, saidmotor having a supply-opening from said means of connection, and avent-opening; and means for varying the relative capacities of thesupply and vent openings.

13. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor arranged to vary the rela- 14. In a pump-governor, thecombination of a centrifugal element; a centripetal element comprising aplurality of springs, said centripetal element being' arranged to act inopposition to said centrifugal element; a motor for varying said springsin and out of action to vary the strength of said centripetal element;and means for connecting said motor with a fluid-receiver, said motorhaving a supplyopening from said means of connection and a vent-opening.

1 5. In a pump-governor, the combination of a centrifugal element; acentripetal element comprisinga plurality of springs, said centripetalelement being arranged to act in opposition to said centrifugal element;a motor for varying said springs in and out of action to vary thestrength of said centripetal element; and means for connecting saidmotor With a fluid-receiver, the fluid-supply of which is to beregulated,said motor havinga supply-.opening from said means ofconnection and a ventopeninfr.

16. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor arranged to vary the relative strength of saidelements; means for connecting said motor with a fluid-receiver, the

duid-supply of which is to be regulated, said motor having asupply-opening from said means of connection and a vent-opening; andmeans for automatically varying the relative capacities of the supplyand vent openings.

17. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor forl varying the relative strength of said elements;means for connecting said motor With a Huid-receiver, said motor havinga supply-opening from said means of connection, and a vent-opening; andmeans actuated by fluid under receiver-pressure for varying the relativecapacities of the supply and vent openings.

18. In apump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor for varying the relative strength of said elements;means for connecting said motor with a duid-receiver, the fluidsupply ofwhich is to be regulated, said motor having a supply-opening from saidmeans of connection, and avent-opening; and means actuated by fluidunder receiver-pressure for varying the relative capacities of thesupply and vent openings.

19. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor for varying the relative strength of said elements;means for connecting said motor with a fluid-receiver, the iiuidsupplyof which is to be regulated, said motor having a supply-opening fromsaid means of connection and a vent-opening; means for automaticallyvarying the relative capacities of said openings With a variation ofreceiverpressure; and means for controlling the eX- tent of variationWith a given variation of receiver-pressure.

20. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor for varying the strength of said centripetal element;means for connecting said motor with a fluid-receiver, said motor havinga supply-opening from said means of connection, and a vent-opening; andmeans for automatically varying the relative capacities of the supplyand vent openings.

Q1. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor for varying the strength of said centripetal element;means for connecting said motor with a fluid-receiver, the fluid-supplyof Which is to be regulated, said motor having a supply-opening fromsaid means of connection, and a vent-opening; and means forautomatically varying the relative capacities of the supply and ventopenings.

22. In apump-governor, the combination of a centrifugal element; acentripetal element ar- IOO IZO

rang'ed to act in opposition to said centrifugal element; a motoi' forvarying' the strength of said centri petal element; means for connectingsaid motor with a fluid-receiver, the Huid-supply of which is to beregulated, said motor having a supply-opening' from said means ofconnection and a vent-opening; means for automatically varying' therelative capacities of said openings with a variation of i'eceivei'-pressure; and means for controllingthe extent of variation with a givenvariation of receiver-pressure.

Q3. In a pump-governor` the combination of a centrifugal element; acenti'ipetal element arranged to act in opposition to said centrifugalelement; a motor for varying the relative streng'th of said elements; acounter-pressure mechanism varying' in streng'th with a movement of themotor; means for connecting' said motor with a fluid-receiver, saidmotor having a supply-opening' from said means of connection and avent-opening.

24. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centi'ifugalelement; a motoi' for varying the relative strength of said elements; acounter-pressure mechanism vai'ying in strength with a movement of themotor; means for connecting said motoi' with a fluid-receiver, thefluid-supply of which is to be regulated, said motor having' asupply-opening from said means of connection and a vent-opening.

25. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor for varying the relative strength of said elements; acounter-pressure mechanism varying in strength with a movement of themotor; means for connecting said motor with a fluid-receiver, thefluid-supply of which is to be regulated, said motor having asupply-opening from said means of connection, and a vent-opening'; andmeans for automatically varying the capacities of said openings.

26. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor for varying' the relative strength of said elements; acounter-pressure mechanism vai'ying' in strength with a movement of themotor; means for connecting said motor with a fluid-receiver, theHuid-supply of which is to be regulated, said motor having asupply-opening fi'om said means of connection, and a vent-opening; meansfor automatically varying' the relative capacities of the openings witha variation of i'eceiver-pressure; and means for controlling the extentof variation with a given variation of receiverpressure.

27. In a pump-governor, the combination of a centrifugal element; acentripetal element arranged to act in opposition to said centrifugalelement; a motor for varying' the relative strength of said elements,said motor being' provided with a supply and a vent opening; a

,controlling-motor; means for connectingsaid conti'olling-motor with areceiver; anda valve actuated by said controlling-motor and ai'- rangedto vary the capacities of said supply and vent openings.

28. In a puinp-g'ovei'noi', the combination of a centi'ifugal element; acentripetal element arranged to act in opposition to said centi'ifug'alelement; a i'egulating-motor arranged to vary the relative strength ofsaid elements, said motoi' being provided with a supply and a ventopening'; a controlling-motor; a counterpressure device on saidcontrolling-inotoi' arranged to increase in strength with a movement ofsaid motor; means for connecting' said controlling-motoi' with areceiver; a valve actuated by said controlling-motor and arranged tovary the capacity of one of said openings with a movement of said motor.

29. In a pump-governor, the combination of a centrifugal element; accntripetal element ai'- i'anged to act in opposition to saidcentrifugal element; a regulating-motor arranged to vary the relativestrength of said elements; a controlling-motor; a counter-pressuredevice on said controlling-motor arranged to increase in strength with amovement of said controllingmotoi'; means for connecting' saidcontrollingmotor with a receiver; a valve actuated by saidcontrolling-motor and arranged to vary the capacity of one of saidopenings with a movement of said motor; and means for adjusting theeounter-pressu re device to vary the movement of the controlling-motorwith a given change of receiver-pressure.

30. In a pump-governor, the combination of a centrifugal element; acentripetal element ai'- rang'ed to act in opposition to saidcentrifugal element; a regulating-motor arranged to vary the relativestrength of said elements, said motor being' provided with a supply anda vent opening; a controlling-motor; a counterpressure device on saidcontrolling-motor arranged to increase in strength with a movement ofsaid controlling-motor; means for connecting' said controlling-motorwith a receiver; a valve mechanism actuated by said motor for varying'the capacity of one of said opening's and for controlling thesupply-passage; means for varying the valve action in the opening' tovary the relative capacities of the openings after the supply passage isopened by the valve mechanism.

31. In a pump-governor, the combination of the chamber A; the valve B,arranged to operate in said chamber; centrifugal governorweights; a stembetween said weights and the valve; a lever operating upon said stem;the springs operating against said levei' and foi'ming the centripetalelement of the governor; a yoke against which said centripetal spring istensioned; counter-pressure springs arranged IOO IIO

on said yoke, said counter-springs being of greater strength than thecentripetal springs; a motor-cylinder; a plunger in said cylinderarranged to operate against said yoke; a supply-chamber in connectionwith said cylinder; a supply-opening and Vent-opening; the valve P p,arranged to open and Close the supplyopening and Vary its capacity; theCylinder N; lche connection N; the plunger O, in the cylinder N,Connected with the valve P p; the lever Q; connections between the leverQ, and

the plunger O; the spring R, arranged on said lever and forming acounter-pressure device against'J the plunger O; the weight-arm Q', onthe lever Q; and adjustable weights Q2, on said I5 arrn.

In testimony whereof I aHX my signature in presence of two witnesses.

i RUDOLPH CONRADER. Witnesses:

GRACE E. YARD, H. C. LORD.

